Wavelength dependent reflectance functions

Jay S. Gondek, Gary W. Meyer, Jonathan G. Newman

Research output: Chapter in Book/Report/Conference proceedingConference contribution

106 Scopus citations

Abstract

A wavelength based bidirectional reflectance function is developed for use in realistic image synthesis. A geodesic sphere is employed to represent the BRDF, and a novel data structure is used to store this description and to recall it for rendering purposes. A virtual goniospectrophotometer is implemented by using a Monte Carlo ray tracer to cast rays into a surface. An optics model that incorporates phase is used in the ray tracer to simulate interference effects. An adaptive subdivision technique is applied to elaborate the data structure from rays scattered into the hemisphere above the surface. The wavelength based BRDF and virtual goniospectrophotometer are utilized to analyze and make pictures of thin films, idealized pigmented materials, and pearlescent paints.

Original languageEnglish (US)
Title of host publicationProceedings of the 21st Annual Conference on Computer Graphics and Interactive Techniques, SIGGRAPH 1994
PublisherAssociation for Computing Machinery, Inc
Pages213-220
Number of pages8
ISBN (Electronic)0897916670, 9780897916677
DOIs
StatePublished - Jul 24 1994
Event21st Annual Conference on Computer Graphics and Interactive Techniques, SIGGRAPH 1994 - Orlando, United States
Duration: Jul 24 1994Jul 29 1994

Publication series

NameProceedings of the 21st Annual Conference on Computer Graphics and Interactive Techniques, SIGGRAPH 1994

Other

Other21st Annual Conference on Computer Graphics and Interactive Techniques, SIGGRAPH 1994
CountryUnited States
CityOrlando
Period7/24/947/29/94

Keywords

  • BRDF
  • Full spectral rendering
  • Monte Carlo

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    Gondek, J. S., Meyer, G. W., & Newman, J. G. (1994). Wavelength dependent reflectance functions. In Proceedings of the 21st Annual Conference on Computer Graphics and Interactive Techniques, SIGGRAPH 1994 (pp. 213-220). (Proceedings of the 21st Annual Conference on Computer Graphics and Interactive Techniques, SIGGRAPH 1994). Association for Computing Machinery, Inc. https://doi.org/10.1145/192161.192202